diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 03e380f3..8ad366f3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -11,7 +11,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
+                php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
 
             fail-fast: false
 
diff --git a/readme.md b/readme.md
index d9bf256a..095ca913 100644
--- a/readme.md
+++ b/readme.md
@@ -34,7 +34,7 @@ Install Dibi via Composer:
 composer require dibi/dibi
 ```
 
-The Dibi 4.2 requires PHP version 7.2 and supports PHP up to 8.2.
+The Dibi 4.2 requires PHP version 7.2 and supports PHP up to 8.3.
 
 
 Usage